Wire stitching machine



R. MINKOW WIRE STITGHING MACHINE March 6, 1945.

3 Sheets-Sheet l Filed Dec. 1l, 1942 mh w o Q um n z QW HV. nv vh Ufa?. m4 n a x \\m\ L 0 l@ .uN vw R R \\|\l\\l\ MN .1 AMI M mu| m@ N [l N m\ 4. m W l m m ,TA bw March 6, 1945. R. MINKow WIRE STITCHING MACHINE 3 Sheets-Sheet 2 Filed Dec. 11, 1942 March 6, 1945. R. MINKOW 2,371,062

WIRE STITCHING MACHINE Filed Dec. ll, 1942 3 Sheets-Sheet 3 avlium-ml Patented-Mar. 6, 1945 UNITED STATES PATENT OFFICE 2,371,062 f WIRE STITCHINGMACHINE Robert Minkow, New York, N. Y. v Appliationneeember 11, 1942, serial Nu. 468,712

6 Claims.

This invention relates to stapling machines.

Anl-object of this invention is to provide an improved work support for a stapling machine so as to provide for the stapling of the work in the proper places. y

This invention is designed especially as an attachment to a stapling machine employinga conventional staplng mechanism inwhich a wire brush is formed, the wire bristles being clamped between a pair lof steel disks which are stapled together at circumferentially spaced points. This invention provides for holding the unstapled disks together and then `supporting the disks so that they may be progressively rotated as the staples are driven therethrough.

This invention also provides for the support of the work in a manner whereby `adjustment may be obtained to accommodate different sizes of disks.

This invention also provides for the latching of the rotary support, the latter being manually rotatable in only onedirection. v

This invention als'o provides for an attachment of this kind in which the support is both horizontally and vertically adjustable so as to provide the necessary adjustment range for different pieces of Work.

To theforegoing objects and others which may hereinafter appear, `thev invention consists of the novel construction, combination and arrangement of parts as will be'more specifically referred to and illustrated in the accompanying drawings, wherein are shown embodiments of theinvenh tion, but it is to'be understood that changes, variations and modifications may be resorted to `which fall Within the scope of the invention as claimed.

In the drawings: v

Figure 1 is a detail elevation, partlyv in vertical section, of an -attachment for a stapling machine, constructed according to an embodiment A of this invention;

Figure 2 is a sectional view taken on the lineA line taken yon the line Figure 8 is a sectional view taken lon the line 8 8 of Figure 3. l

Figure 9 is a fragmentary vertical sectional View similar to Figure 3, but on a lar-ger scale;

Figure l0 is a fragmentary side elevationl of the gage means at the rear of the machine.

Referring to the drawings the numeral I0 designates generally a stapling machine of conventional construction which includes a vertical column or standard II supporting a stapling structure I2which opposes an anvil l 3 positioned beneath the stapling mechanism I2.

The anvil I3 is supported vfrom a bracket 't4 which is carried by the column or standard II. The bracket I4 is provided at its inner endvvith a base I5 which engages a guide yIii carried bythe forward side of the standard lil. The column 'I-I is' formed with a pair of horizontally aligned guide passages I'I and I8 and the base I5 of the bracket I4 is provided with a boss i9 loosely'en? gaging in the guide opening Il. A bracket holding bolt 20 4engages through the two openings `Il and I'8 and is threaded into the' boss I9. Tightening of `the bolt 2G will hold the bracket I4 in vertically adjusted position with respect to the column or standard II. The bracket I4 may 4be vertically adjusted along the column I l by means of a threaded adjusting screw 2I which lis threaded in an opening 22 formed in the lower portion of the base I5. Theadjusting screwI 2l is formed witha knurled knob 23 adjacent 'the lower end thereof, and the adjusting screw 2I is formed with a reduced stud 24 which rotatably engages in a socket 25 carried by a forwardly projecting lug 2'6. with or secured to the column I I below the guide I6.

The anvil I3 vis mounted in an opening 21 which is formed in the forward portion ofthe bracket I4 land the anvil 21 includes a reduced diameter stud 28 loosely engaging in a vreduced opening 23 formed in the bracket I4. Theupper side 30 ofthe bracket I4 constitutesthe clinching table and the upper end of the anvil I3 is substantially flush withthe upper side of the table 30. In order to provide a means whereby the work which 'is being stapled may berotatably supported with respectto the table 3l) and the anvil [3,1 have provided a vertically disposed shaft 3| which isv rotatably mounted `between a pair of bearing blocks 32 and 33. The bearing blocks '32 and 33 are disposedbetweena pair of forwardly projecting plates 314 and 35 and are secured therebetween by means of fastening members '35 and 3l. The blocks 32 and 33 are alinedlwith respect The lug 2'6 is formed `integralbristles 45.

` clamped between the two disks 43 and 44.

` ber I.

through the openings :46 and 4l'. l is also formed with a reduced threaded stud 54 i plate 5B.

to each other by means of one or more dowel pins 38 which engage in sockets39 formed in the confronting sides of the bearing blocks 32 and 33.

The shaft 3| is hollow and is formed at its upper end with an annular flange 40 bearing against the upper ends of the blocks 32 and 33. The shaft 3| is formed with an enlarged lower portion 4| bearing against the lower end of the blocks Y 32 and 33 and a hand wheel '42 is secured, in

any suitable manner, tothe lower end of the shaft 3|. In the present instance 4the stapling machine is designed for stapling together a pair of diskshaped plates 43 and 44 which engage on op-V instance, formed ofwire or steel andare firmly disks 43 and 44 are formed with aligned openings 46 and 41 respectively, and the disks are removably'held on the upper end `of the shaft 3| by means of a clamping structure.

the upper side of the flange 49. The plate 48 is upper end thereof by means of a fastening memdisk 43 and is. formed lwith a stud 53 engaging The stud 53 which is threaded into the lower clamping plate 48.

. posite sides of a plurality of radially arranged The bristles 45 are, in the present l The clamping l structure includes a lower plate 48 which rests on The upper` clamping plate I52 is adapted to engage against the upper side ofthe upper 2,371,0ea Y f engages. The bolt 'I9 hasv a chain 13 secured thereto, thechain providing a means whereby the bolt 'ID will not be lost when it is removed during the lengthwise adjustment of the arms 59 and 60. A pointer 14 which is secured by fastening means I5 to the arm 69, engages over the upper side of the table 39 rearwardly of the anvil I3, and is correlated with graduations 'I6 which are formed in the table 39.

' The handwheel 42 is adapted to rotate in only one direction and is latched in its rotated position by means'of a spring-pressed pawl 'II which is mounted in a sleeve 18. y 'Ihe sleeve 'I8 is formed with an L-shaped opening 19in one side The In order to provide a means whereby the brush,

which is formed by the bristles clamped between the disks 43 and 44, may be rotated to provide for the circumferential position of the staples,

I have provided a ratchet plate 55 which is secured to a plate 55 carried by the lower side The plate 55 is secured by v of the wheel 42. fastening members 5l to the spokesof the handwheel 42 and the 'ratchet plate 55is secured by fastening members '58 tothe lower side of the In the present instance, there are three annular series of ratchets 55, the purpose for which will be hereinafter described (see Figure '7).

. The bearing block supporting plates si and 35 plates 34 and 35 respectively. The arms 59 and 60 are formed with longitudinal keys 6I and E2 3 respectively, engaging in guideways 93 andy 64 are adjustably mounted on the forward end of i the bracket 4 by means of 'rearwardly projecting arms 59 and 59 which extend rearwardly from the carried by the opposite sides of the .bracket I4 below thetable 39.

The arms 59 and 6G are formed with elongated i slots or openings l55 and 'Eirespectively anda clamping bolt El engages through an opening 68e formed in the bracket I4 andloosely engages in the slots 55 and 53. A wing nut `93 is threaded onto the bolt 6l and preferably a flanged washer nut `t8 or bushing 69 is interposed between the and the outer side of the arm 5S.

The arms 59 and 99 are accurately adjusted lengthwise of the bracket I4 by means of a hold sockets 'I2 within which theA bolt 'I9 threadably 75 thereof, and a pin 8B carried by the pawl 'II loosely engages inthe vertical porti-on of the L- shaped sleeve VT9. The horizontal portion of the L-shaped slot 'I9 provides a means whereby the pawl TI-may be latched in a released position with respect to the ratchet 55. The sleeve 'I'8`is formed with a reduced lower rportion 8| engaging in an opening 82 formed in a'horizontally disposed pawl supporting barr 83. The pawl 'Il is provided with a reduced shank `84 slidable in the reduced sleeve 8|, and a spring 85V constantly urges the pawl 1l to a latched position. Lock nuts 85 are threadedl onto the'lower end ofthe shank 84, and'limit the upward movement of the pawl TI. The pawl supporting bar 83, at its rear end, is secured by means' of a fastening member 81 to a boss 88, which is formed integral with the bracket I4. The intermediate portion of the bar 83 is supported from the bracket I4 by means of a pair of L-shaped supporting bars 89 which have their vertical sides 99 secured by a fastening member 9| to the bar 83.,` ,4 The upper horizontal sides 92 of. the supporting bars Y89 are secured'by fastening members93 to a boss 94 formed integral with the bracket 44.

In the use and operation of this attachment the bracket I4 is vertically adjusted by means of the adjusting screw 2|. The holding bolt 29 is initially loosened to permit vertical adjustment of the bracket I4 by rotation of the adjusting screw 2|.A The `guide I', at'one side thereof, and the base I5,v on the same vertical'side, are provided v with correlated gauge members 95 and 96'respectioning the anvil I3 with respect to the stapling structure |=2. The` two disks 43 and 44 are clamped together with the wirebristles 45 engaging therebetween by threading the stud 54, carried by the upper clamping member y52, into the lower clamping member 148.7 The semicircular stud 49 then inserted in therho'llow shaft 3|, the semi-circular platewll, which is fixed relative to the shaft 3|, holding theclamping members 49 and 52 and the disks 43 and 44 against rotation with respect to the shaft 3|.

As the staples are driven'through the two disks 43 and 44 the operator of the mechanism is adapted to manually and progressively rotate the handwheel 42 which is turned' in a clockwise direction for the distance of one notch in ratchet l55 for each staple. j l

:In the present instance, the handwheel 42 is rotated in a clockwise direction, as viewed 'in Figures 1 and 2. By providing a plurality of concentrically arranged ratchet teeth on the plate 55 (see Figure 7),v the pawl TI will engage a correlated series of ratchet teeth when the `work supporting structure, including the shaft 3| and the bearing blocks`32 and 3 wise of the bracketl4.

This device may be made as an attachment to 3 are adjusted length' a conventional stapling machine, the'standard of the machine being formed with the necessary guide means for the supporting bracket and the work rotating means hereinbefore described may be secured to the sides of the anvilsupporting bracket.

This attachment will permit the rotation of the work at a point below the stapling head so that the operator will not be injured by rotating the work by contacting the hands directly with the work.

While this device has been' designed particularly for use in assembling circular bristle brushes or circular wire brushes, it may also be used for stapling cloth buiiing wheels, or other elements which are stapled together by means of a circular series of staples, regardless of the outer configuration of the article. In other Words, it will be understood that the configuration of the article to be stapled is not a limiting factor in the use of this invention, and I do not Wish to be limited to the particular uses herein set forth.

I claim:

l. In a wire stapling machine having a supporting standard, a stapling head and a staple clinching anvil, a bracket secured to said standard and formed with an anvil socket, a vertical shaft forwardly of said anvil, means rotatably mounting said shaft on said bracket, work clampingmeans removably engaging said shaft, and means for rotating said shaft.

2. In a, wire stapling machine having a supi porting standard, a stapling head and a staple clinching anvil, an anvil supporting bracket, a vertically disposed'shaft forwardly of said anvil, horizontally adjustable means-supporting said shaft forwardly of said anvil, work clamping.

means, correlated means carried by said clamping means and said shaft for holding said 'clamping means against rotation relative to said shaft,

means for rotating said shaft, and ratchet means Y ing means against rotation relative to said shaft,

a wheel fixed to said shaft, alratchet fixed to saidv wheel, and a spring-pressed pawl carried by said bracket engaging said ratchet.

4.\In a wire stapling machine having a supporting standard, a stapling head and a staple clinching anvil, an anvil supporting bracket, a

vertical hollow shaft forwardly` of said anvil, a-

pair of bearing blocks for said shaft, a pair of bearing supporting plates, rearwardly extending supporting means carried by said plates and eni gaging on opposite sides of said bracket, means adjustably securing said arms lengthwise of said bracket, work clamping means seating on the up#- per end of said shaft, correlated means carried by said clamping means and said shaft holding said clamping meansagainst rotation relative to said shaft, and means for rotating said shaft.

6. In a wire stapling machine having a supporting standard, a stapling head and a staple clinching, anvil, an anvil supporting bracket, a vertical hollow shaftr forwardly of said anvil, a pair of bearing blocks for said shaft, a pair of bearing supporting plates, rearwardly extending supporting means .carried by said plates and engaging on opposite sides of said bracket. means adjustably securing said arms lengthwise of said i bracket, work clamping means seating on the up-` per end of said shaft, correlated means carried by said clamping means and said shaft holding said Aclamping means against rotation relative to said shaft,-said correlated means including a depending stud carried by said clamping means, means carried by said shaft holding said stud against rotation relative to said shaft, and means for rotating said shaft.

ROBERT MINKOW. 

